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EP1876329A3 - Lever-type cam follower of a valve mechanism of a combustion machine - Google Patents

Lever-type cam follower of a valve mechanism of a combustion machine Download PDF

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Publication number
EP1876329A3
EP1876329A3 EP07111405A EP07111405A EP1876329A3 EP 1876329 A3 EP1876329 A3 EP 1876329A3 EP 07111405 A EP07111405 A EP 07111405A EP 07111405 A EP07111405 A EP 07111405A EP 1876329 A3 EP1876329 A3 EP 1876329A3
Authority
EP
European Patent Office
Prior art keywords
cam follower
lever
valve mechanism
combustion machine
type cam
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP07111405A
Other languages
German (de)
French (fr)
Other versions
EP1876329A2 (en
EP1876329B1 (en
Inventor
Wolfgang Christgen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schaeffler KG filed Critical Schaeffler KG
Publication of EP1876329A2 publication Critical patent/EP1876329A2/en
Publication of EP1876329A3 publication Critical patent/EP1876329A3/en
Application granted granted Critical
Publication of EP1876329B1 publication Critical patent/EP1876329B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12Transmitting gear between valve drive and valve
    • F01L1/18Rocking arms or levers
    • F01L1/185Overhead end-pivot rocking arms
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12Transmitting gear between valve drive and valve
    • F01L1/18Rocking arms or levers
    • F01L1/181Centre pivot rocking arms
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12Transmitting gear between valve drive and valve
    • F01L1/14Tappets; Push rods
    • F01L1/16Silencing impact; Reducing wear
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12Transmitting gear between valve drive and valve
    • F01L1/18Rocking arms or levers
    • F01L2001/188Fulcrums at upper surface
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2301/00Using particular materials
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2303/00Manufacturing of components used in valve arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2305/00Valve arrangements comprising rollers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

Vorgeschlagen ist ein hebelartiger Nockenfolger (4) eines Ventiltriebs (1) einer Brennkraftmaschine (2). Der Nockenfolger soll durch eine ausgewählte Merkmalskombination die Schaftendenfläche (16) eines Tellerhubventils (17) exzentrisch kontaktieren, um das Tellerhubventil gezielt zur Rotation anzuregen.

Figure imgaf001
Proposed is a lever-like cam follower (4) of a valve train (1) of an internal combustion engine (2). By means of a selected combination of features, the cam follower is intended to eccentrically contact the shaft end surface (16) of a plate-lifting valve (17) in order to purposefully stimulate the disk-lifting valve to rotate.
Figure imgaf001

EP07111405.2A 2006-07-05 2007-06-29 Lever-type cam follower of a valve mechanism of a combustion machine Not-in-force EP1876329B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006031031A DE102006031031A1 (en) 2006-07-05 2006-07-05 Lever-like cam follower of a valve train of an internal combustion engine

Publications (3)

Publication Number Publication Date
EP1876329A2 EP1876329A2 (en) 2008-01-09
EP1876329A3 true EP1876329A3 (en) 2010-04-07
EP1876329B1 EP1876329B1 (en) 2013-08-14

Family

ID=38596164

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07111405.2A Not-in-force EP1876329B1 (en) 2006-07-05 2007-06-29 Lever-type cam follower of a valve mechanism of a combustion machine

Country Status (2)

Country Link
EP (1) EP1876329B1 (en)
DE (1) DE102006031031A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013102150A1 (en) * 2013-03-05 2014-09-25 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Rocker arm arrangement
DE102017212521A1 (en) 2017-07-20 2019-01-24 Aktiebolaget Skf Self-aligning cam follower roller device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE903151C (en) * 1950-05-11 1954-02-01 Fiat Spa Internal combustion engine with poppet valves
FR62166E (en) * 1951-11-23 1955-06-10 Valve actuation improvements for internal combustion engines
EP0185570A1 (en) * 1984-11-19 1986-06-25 Automobiles Peugeot Single rocker arrangement for driving two valves
JPH09280016A (en) * 1996-04-12 1997-10-28 Kubota Corp Valve system of overhead valve engine
DE19644916A1 (en) * 1996-10-29 1998-04-30 Schaeffler Waelzlager Ohg Valve gear in cylinder head of internal combustion engine
WO2000020730A1 (en) * 1998-10-05 2000-04-13 Eaton Automotive S.P.A. Valve train assembly
JP2002276309A (en) * 2001-03-22 2002-09-25 Nsk Ltd Rocker arm
JP2004225551A (en) * 2003-01-20 2004-08-12 Koyo Seiko Co Ltd Cam follower

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH220829A (en) * 1940-11-23 1942-04-30 Porsche Kg Device for the automatic rotation of indirectly operated valves of valve-controlled internal combustion engines with respect to their seat.
US2572106A (en) * 1949-12-01 1951-10-23 Gen Motors Corp Valve rotating device
FR1030167A (en) * 1950-12-27 1953-06-10 Valve actuation improvements for internal combustion engines
FR1052163A (en) * 1951-03-23 1954-01-21 Fiat Spa Device for producing valve rotation in overhead valve engines
DE931076C (en) * 1953-05-16 1955-08-01 Volkswagenwerk G M B H Forced valve turning device, especially for internal combustion engines
DE959422C (en) * 1955-05-12 1957-03-07 Maschf Augsburg Nuernberg Ag Rotatable valve for internal combustion engines
FR1508935A (en) * 1966-01-26 1968-01-05 Ustav Pro Vyzkum Motorovych Vo Rotary valve for internal combustion engines
DE2044727A1 (en) * 1970-09-10 1972-03-16 Prelle, Erich, 3011 Egestorf Device for rotating an axially movable component, in particular a valve for internal combustion engines
DE9116143U1 (en) * 1991-04-22 1992-03-19 Steyr-Daimler-Puch Ag, Wien Valve lever for internal combustion engines
JP2001152817A (en) * 1999-12-01 2001-06-05 Teikoku Piston Ring Co Ltd Rocker arm and valve system for internal combustion engine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE903151C (en) * 1950-05-11 1954-02-01 Fiat Spa Internal combustion engine with poppet valves
FR62166E (en) * 1951-11-23 1955-06-10 Valve actuation improvements for internal combustion engines
EP0185570A1 (en) * 1984-11-19 1986-06-25 Automobiles Peugeot Single rocker arrangement for driving two valves
JPH09280016A (en) * 1996-04-12 1997-10-28 Kubota Corp Valve system of overhead valve engine
DE19644916A1 (en) * 1996-10-29 1998-04-30 Schaeffler Waelzlager Ohg Valve gear in cylinder head of internal combustion engine
WO2000020730A1 (en) * 1998-10-05 2000-04-13 Eaton Automotive S.P.A. Valve train assembly
JP2002276309A (en) * 2001-03-22 2002-09-25 Nsk Ltd Rocker arm
JP2004225551A (en) * 2003-01-20 2004-08-12 Koyo Seiko Co Ltd Cam follower

Also Published As

Publication number Publication date
EP1876329A2 (en) 2008-01-09
DE102006031031A1 (en) 2008-01-10
EP1876329B1 (en) 2013-08-14

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